Fire-extinguisher.



No. 648,37l.

Patented May I, I900.

A. ,1. ALLEN. FIRE EX'TINGUISHER.

(Application filed Feb. 21, 1am.) (No Model.) 2 Sheets-Sheet I.

ta gj /lw A TTORNEYJ' m c. m: udmus 9mm no. PNOTMITNIL. wxsummbu Patented May l, l900. A. J. ALLEN, FIRE EXTINGUISHER, 5 (Application filed Feb. 21, 1899.)

2 Shook-Sheet 2,

(No Model.)

NTOF /IU ATTORNEY;

m: Noam: virus 00., Puma. wnsummu, a. c.

NITED. STATES PATENT OFFICE.

ANTHONY J. ALLEN, OF HOBOKEN, NEW JERSEY.

FIRE-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 648,371, dated May 1, 1900.

Application filed February 21, 1899. Serial No. 706,325. (No model-) To ctZZ whom it may concern:

Be it known that I, ANTHONY J. ALLEN, a

citizen of the United States, residing at 110- boken, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Fire-Extinguishers, of which the following is a full and complete specification, such as will enable those skilled in the art to which it appertains to make and use the same.

This invention relates to automatic fire-extinguishers, and has more particular refer ence to a chemical extinguisher which shall be automatically actuated by a predetermined rise in the temperature of the surrounding atmosphere. I am aware that extinguishers of this class have been constructed in which a fuse communicating with explosive mat-erial surrounded with suitable combustion-destroying substances was adapted to beignited by flame and operate the extinguisher; also, that the explosion of chemical fire-extinguishers has been caused by electrical and other means; but my improvement is intended to be more responsive, reliable, and accurate than any before constructed in that the scattering of the extinguisher chemicals is caused by an explosion in the center of its mass, said explosion being caused by the mechanical action of an element of theconstruction directly and absolutely controlled by a length of fusible material which a predetermined degree of heat without the aid of flame willcause to f use.

Reference is made to the accompanying drawings, forming a part of this specification, in which like figures of reference refer to like parts in the several views, and in which Figure 1 is a side elevation of my fire-extinguisher; Fig. 2, a section on the line 2 2 in Fig. 4; Fig. 3, a partial section on the line 3 3 in Fig. 4., and Fig. at a sectional elevation of my extinguisher.

Referring more particularly to the drawings, 5 is a bulbous globe or other receptacle designed to hold fire-extinguishing material.

' The globe 5 may be of any form and may, if

desired, be designed to hold water or other fire-extinguishing substance and is provided with a neck portion 6, through which and into which globe is inserted a tube 7, which extends downwardly through approximately the entire globe 5 and is preferably of glass and designed to contain a small mass of fulminated explosive, as at 8, the explosion of which it is designed shall scatter the contents of the globe 5, which latter will be shattered by the shock of the explosion. I also provide a suspension device 9, consisting of a ring or loop of metal provided with downwardly-extending arms 10, and integral with said arms 10 are formed concentric annular interiorly-screwthreaded heads 11 and 12. The head 12 is of larger diameter than the head 11 and is designed to surround and clamp the globe 5 and the head 11 to surround and clamp the tube 7 within the neck portion 6 of the globe 5, as about to be described. The neck portion 6 of the globe 5 is provided'with an exterior annular head 13, and a split ring 14 is formed to fit said neck portion 6 beneath said head 13 and is exteriorly screw-threaded. The tube 7 is provided in the upper portion thereof with an exterior annular bead 15, and an exteriorly-threaded split ring 16 is formed to fit said tube 7 and the bead l5 thereon. The threaded head 11 is screwed onto the ring 16, firmly clamping the tube 7 within said ring. The tube 7 is then placed in the globe 5, and the threaded head 12 is then screwed onto the ring 14, firmly clamping the tube 7 within the globe 5, and as the heads 11 and 12 are integral with the suspension-ring 9 the whole may be suspended thereby from a suitable hook, nail, or peg. It will be evident that the neck portion of the globe 5 is thus effectively closed by the tube 7, ring 16, head 11, head 12, and ring 14:.

To explode the fulminated'charge 8 in the tube 7, I employ a cylindrical firing-pin 17, provided with a nipple 18 and slidably mounted in the tube 7, fitting closely therein. The firing-pin 17 is provided with an eye or ring 19 in the upper end thereof and is normally supported by a length of fuse-wire 20, which is secured to said eye 19 and to the suspension-ring 9, and the fuse-wire 20 is constructed to be fusible under any desired predetermined thermal condition. In practice I have found that a wire fusible at approximately 150 Fahrenheit is best adapted to general working conditions, and I do not mean to be understood that I employ a wire alone, but may employ any suitable composition or substance adapted to the purposes specified. I

also employ a funnel-shaped deflector or heat concentrating device .21, which I suspend from the arms of the suspension device,

and the deflector 21 is provided with an upwardly-opening central mouth or opening 22, through which the wire passes,and the heated surrounding atmosphere is concentrated ous portion of the globe 5, and when the latter is shattered under concussion of the powder 8 the netting 23 prevents the scattering thereof] and the possible resultant injury to person or property. The netting 23 also pre-' vents accidental destruction of the globe 5 from chance falls or blows.

The operation of my device is evident from the foregoing descriptiomtaken in connection with the'accompanying drawings, andthefol 'lowing statement thereof. t I

The globe 5 may be filled throughthe neck 6 thereof with any suitable fire-extinguishing material, preferably well-known chemical agents, and the tube 7, charged with fulminated explosive 8, is then inserted through the neck 6 thereof after securing it firmly in the arms 10 by means of the ring 16 and head 11, and the arms 10 are then securely bound to the globe 5 by means ofthe ring 14 and head 12, thus firmly binding the tube 7 in place and sealing the globe 5. The firing-pin "17 is fittedinto the tube 7 and suspended by the fuse-Wire 20 and the netting 23 secured about the globe 5. The entire device may be suspended in a dwelling-room, factory, ships hold, or elsewhere by means of a pin or nail which may'pass through the ring 9. If the surrounding atmosphere become heated to a predetermined temperature, it will rise through the deflector 21'and cause the wire 20 to fuse, releasing the firing-pin 17 and causing the explosive S to expand, breaking the tube 7 and the globe 5 anddisseminating the extinguishing substance therein. The

firing-pin 17 will be retained within the net-V -1.-'- In -a-fireextinguisher of the class described, a'globe or receptacle adapted to be filled with fire-extinguishing material, a tube provided with explosive material, and a suspending device provided with circular heads adaptedto support'said globe, and to support said tubein said globe, said circular headsv furnishinga closure for said globe, substantially as shown and described.

2. In a fire-extinguisher of the class described, a globe or receptacle adapted to be filled with fire=extinguishing material, a tube provided with explosive material, a-suspending device provided with circular heads adapted to support said globe and to clamp said tube in said globe, a firing-pin slidably mounted in said tube, and adapted to fire said explosive, and a wire or strand of fusible substance secured to said fastening device and saidfiring-pin, said circular heads furnishin g a closure for saidfglobe, substantially as shown and described.

v 3.. In a fire-extinguisher of the class described, a globc'or receptacle adapted to be filled with fire-extinguishing material, a tube provided with explosive, material, a suspending device provided with circular heads adapted to support said globe and to clamp said tube in said globe, a-firing-pin'slidably mounted in saidtube, and adapted to fire said explosive, and a wire or strand of fusible substance secured to said fasteningdevice and said firing-pin, said circular heads fur nishing a closure for said globe, and a shade or deflector connected with said suspending device and surrounding said wire orstrand, substantially as shown and described.

4. In a fire-extinguisher of the class described, a globe or'receptacle adapted to be filled with fire-extinguishing material, a tube provided with explosive, material, a suspending device provided with circular heads adapted to support said globe and to clamp said tube in said globe, a firing-pin slidably mounted in said tube, and adapted to fire said explosive, and a Wire or strand'of fusible substance secured to said fastening device and said firing-pin, said circular heads furnishing a closure for said globe, and a netting, or screen secured to and surrounding said globe, substantially as shown and described. j

In testimony thatI claim the foregoing as my'invention I have signed my name, in presence of-the subscribing witnesses, this 18th day of February, 1899.

ANTHONY J. ALLEN.

Witnesses:-

F. A. STEWART; V. M. VOSLER.

IIO 

